fix: await the result returned by resourceIndicators.useGrantedResour…

…ce function, in resolve_resource.js

Since the useGrantedResource function can be async function (in fact the default value is indeed async function), the result of calling it must be awaited.
Or, !! a Promise object always return true.

lib/helpers/resolve_resource.js

@@ -11,7 +11,7 @@ module.exports = async (ctx, model, config, scopes = model.scopes) => {
       case !model.resource:
       case Array.isArray(model.resource) && model.resource.length === 0:
         break;
-      case model.resource && !!config.resourceIndicators.useGrantedResource(ctx, model):
+      case model.resource && !!(await config.resourceIndicators.useGrantedResource(ctx, model)):
       case !ctx.oidc.params.resource && (!config.userinfo.enabled || !scopes.has('openid')):
         resource = model.resource;
         break;